Fix unicode py 3 compatibility for tests
Fix unicode py 3 compatibility for tests

jml/pyrsistent,Futrell/pyrsistent,Futrell/pyrsistent,jml/pyrsistent,tobgu/pyrsistent,jkbjh/pyrsistent,tobgu/pyrsistent,Futrell/pyrsistent,jkbjh/pyrsistent,tobgu/pyrsistent,jkbjh/pyrsistent,jml/pyrsistent